I have a wierd problem in 2 of my websites..
When I surf in the web and go into pages they work excellent, but if I copy the link and than paste it (send to someone, paste to the browser), suddenly it gives back 404 error.
I couldn't understand what is the cause for that problem, I hope you guys will figure this out.
p.s. the problem only happens in categories, not in the other pages.
this is an example of where the problem causes: